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Title: C74AMST CreationDate: 06/23/93 17:09:07
| Problems | Action | |||
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| Blank screen with one | When you are using an external display with a display adapter, a | |||
| beep. | blank screen is normal. | |||
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| When you return to operating mode from suspend mode, one beep |
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| If you are using an |
| sounds and the suspend LED on the computer blinks and a | ||
| external display, go to |
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| “External Display |
| type the | ||
| (CRT) Problems” on |
| Verify that: | ||
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| 1. Both the brightness and contrast controls on the computer are | |||
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| correctly adjusted. |
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| 2. The Display device parameter in the ThinkPad Features menu is |
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| correctly specified. Refer to the information supplied with your |
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| computer. |
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| If the above items are correct and the screen remains blank, have the |
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| system unit serviced. |
| Blank screen with a | This beep can be a message from the warning function of the Dock I. | |||
| continuous beep, or two | See “Warning Function” on page | |||
| or more beeps. | If the problem still occurs, have the system unit serviced. | |||
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| Only the cursor “_” | If you are using an external display with a display adapter, the | |||
| appears. | cursor “_” is normal. | |||
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| Otherwise, have the system unit serviced. |
| Screen is unreadable or | Have the system unit serviced. | |||
| distorted. |
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| Wrong characters appear | Have the system unit serviced. | |||
| on the screen. |
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Chapter 6. Solving Problems